Data show that TAB2 and TAB3 are receptors that bind preferentially to polyubiquitin chains through a highly conserved zinc finger (ZnF) domain, and activate NF-kappa B and IKK.

The TAB2/TAB3 interaction with TAK1 is crucial for the activation of signaling cascades mediated by interleukin-1, tumor necrosis factor, and receptor activator of nuclear factor-kappa B ligand (RANKL).

TAB3 profil antigène

Antigen Summary

The product of this gene functions in the NF-kappaB signal transduction pathway. The encoded protein, and the similar and functionally redundant protein MAP3K7IP2/TAB2, forms a ternary complex with the protein kinase MAP3K7/TAK1 and either TRAF2 or TRAF6 in response to stimulation with the pro-inflammatory cytokines TNF or IL-1. Subsequent MAP3K7/TAK1 kinase activity triggers a signaling cascade leading to activation of the NF-kappaB transcription factor. The human genome contains a related pseudogene. Alternatively spliced transcript variants have been described, but their biological validity has not been determined.